Phytec phyCORE-i.MX35, Руководство по оборудованию

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phyCORE-i.MX35
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PHYTEC Messtechnik GmbH 2010 L-734e_1
4 Power Requirements
The phyCORE-i.MX35 normally operates off of one voltage supply denoted as VIN . The TPS650241
primary on-board voltage regulator operates off of VIN and generates all on-board supply voltages.
The phyCORE-i.MX Carrier Board generates VIN. VIN is sourced from either the wall socket input, or
a battery.
The input voltage VIN should be 5 V, with a nominal current allowance of at least 3 A.
See Table 1 from section 2 above for applicable VIN power pins on the phyCORE-connector.
Caution!
Connect all VIN input pins to your power supply.
As a general design rule we recommend connecting all GND pins which are neighboring signals
being used in the application circuitry.
The i.MX35x CPU is supplied by different power domains.
Table 3: i.MX35 default power input voltages
P
OWER
O
UTPUT
P
OWER
-D
OMAIN
S
TARTUP
V
OLTAGE
-L
EVEL
Power switch 1 of U17 VDD_3V3 3.3 V
Power switch 2 of U17 VDD_1V8 1.8 V
Power switch 3 of U17 VDD_1V375 1.375 V
LDO 1 of U17 LDO_3V3 3.3 V
LDO 2 of U17 LDO_1V5 1.5 V
LDO VDD_ALIVE of U17 VDD_ALIVE 1.2 V
Note:
Phytec recommends to use the different power sources that are connected to the molex connectors of
the phyCORE-i.MX35 only as reference.
The current that could be externally drawn from the VCC_3V3 supply is max 500 mA..